公开(公告)号：US20160252851A1

公开(公告)日：2016-09-01

申请号：US15049536

申请日：2016-02-22

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yasuhiro MICHISHITA ,  Satoshi UEMURA

IPC: G03G15/16

CPC classification number: G03G15/1665 ,  G03G15/1675 ,  G03G15/657 ,  G03G15/80 ,  G03G21/203

Abstract: In printing, a first power supply unit applies a transfer current with a polarity opposite to a charged polarity of toner to the transfer roller. A second power supply unit applies a toner scattering suppression current with a polarity opposite to the charged polarity of the toner to a stretching roller until a rear end of a sheet passes through a separation position after a front end of the sheet reaches the separation position. The first power supply unit applies a post-transfer current, which has a polarity opposite to the charged polarity of the toner and has an absolute value equal to or more than an absolute value of the toner scattering suppression current, to the transfer roller until the rear end of the sheet passes through the separation position after the rear end of the sheet passes through the nip position.

Abstract translation: 在打印时，第一电源单元将具有与带电极性相反的极性的转移电流施加到转印辊。 第二电源单元将具有与调色剂的带电极性相反的极性的调色剂散射抑制电流施加到拉伸辊，直到片材的后端在片材的前端到达分离位置之后通过分离位置。 第一电源单元施加后转移电流，该转移电流具有与调色剂的带电极性相反的极性，并且具有等于或大于调色剂散射抑制电流的绝对值的绝对值到转印辊直到 在片材的后端通过夹持位置之后，片材的后端通过分离位置。

公开(公告)号：US20150301494A1

公开(公告)日：2015-10-22

申请号：US14685910

申请日：2015-04-14

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Yuta KITABAYASHI ,  Koji UNO ,  Satoshi UEMURA

IPC: G03G15/00

CPC classification number: G03G15/161 ,  G03G2215/1661

Abstract: An image forming apparatus includes an image carrier, a cleaning member, a rotation controlling part, a first obtaining part and a mode changing part. The image carrier has a surface to carry a toner image transferred onto a sheet. The cleaning member contacts the surface of the image carrier at a downstream side in a rotating direction of the image carrier from a transferring position transferring the toner image to collect a toner from the image carrier and to hold the toner. The rotation controlling part has a first speed control mode rotating the cleaning member at a first rotational speed and a second speed control mode rotating the cleaning member at a second rotational speed faster than the first rotational speed and switches from the first speed control mode to the second speed control mode at predetermined switch timing.

Abstract translation: 图像形成装置包括图像载体，清洁构件，旋转控制部，第一获得部和模式改变部。 图像载体具有用于承载转印到片材上的调色剂图像的表面。 清洁构件在图像载体的旋转方向的下游侧从转印调色剂图像的转印位置接触图像载体的表面，以从图像载体收集调色剂并保持调色剂。 旋转控制部具有第一速度控制模式，以第一旋转速度旋转清洁部件，第二速度控制模式以比第一旋转速度快的第二旋转速度旋转清洁部件，并且从第一速度控制模式切换到 第二速度控制模式。

公开(公告)号：US20170227894A1

公开(公告)日：2017-08-10

申请号：US15420718

申请日：2017-01-31

Applicant: KYOCERA Document Solutions Inc.

Inventor： Keisuke OBA ,  Satoshi UEMURA ,  Kenji MIYAMOTO

IPC: G03G15/16

CPC classification number: G03G15/1615 ,  G03G15/161 ,  G03G2215/0132 ,  G03G2215/0193

Abstract: An image forming apparatus of the present disclosure includes a plurality of image forming portions, an intermediate transfer unit, a secondary transfer member, a belt cleaning device, and a control portion. The intermediate transfer unit includes an intermediate transfer belt, a plurality of primary transfer members, a drive roller, a tension roller, and a contacting/separating mechanism. The belt cleaning device includes a cleaning member which faces the tension roller with the intermediate transfer belt therebetween. In a withdrawal mode, the cleaning member is moved by pressing force of the tension roller further into a housing from an opening portion as compared with in a printing mode. The control portion is capable of executing, while image formation is not being performed, a transfer toner collection mode in which the intermediate transfer belt and the belt cleaning device are driven in the withdrawal mode.

公开(公告)号：US20160231669A1

公开(公告)日：2016-08-11

申请号：US15040636

申请日：2016-02-10

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yasuhiro MICHISHITA ,  Satoshi UEMURA

IPC: G03G15/16

CPC classification number: G03G15/657 ,  G03G15/1675

Abstract: An image forming apparatus includes an image carrier, a conveyance belt, a transfer roller, a suspension roller, and a conductive opposed member. The conveyance belt is in contact with the image carrier to form a nip and conveys a sheet via the nip position. A voltage of reversed polarity to a charge polarity of toner forming the toner image is applied to the transfer roller to transfer the toner image to the sheet at the nip position. A suspension roller suspends the conveyance belt at a separation position. The separation position is downstream with respect to the nip position in a sheet conveyance direction. The separation position is positioned where the sheet separates from the conveyance belt. The voltage of reversed polarity to the charge polarity of the toner is applied to the suspension roller. The conductive opposed member is arranged opposed to the suspension roller across the conveyance belt.

Abstract translation: 图像形成装置包括图像载体，输送带，转印辊，悬挂辊和导电性相对的构件。 输送带与图像载体接触以形成压区，并经由夹持位置输送片材。 将形成调色剂图像的调色剂图像的调色剂的电荷极性的反极性电压施加到转印辊上，以将调色剂图像转印到辊隙位置处的片材。 悬挂辊将输送带悬挂在分离位置。 分离位置相对于纸张输送方向上的辊隙位置是下游的。 分离位置位于片材与输送带分离的位置。 与调色剂的充电极性相反的极性电压被施加到悬挂辊。 导电对置构件布置成相对于悬挂辊跨过输送带。